A Study on Tensile Bond Strength of Silicone-rubber Soft Relining Material: Denture Relining^® to Various Denture Base Materials

Abstract

The tensile bond strength (TBS) to denture base materials of silicone-rubber soft relining materials (DRS: Denture Relining Soft type, GC) immersed in water at 37°C from 1 day to 8 weeks was investigated. Four denture base metals (18 K-Au alloy, Ag-Pd-Au alloy, Co-Cr alloy and Pure Ti) and two denture base resins (polycarbonate resin and polysulfon resin) were used. The TBS of DRS was 1.39-2.05 MPa to denture base metals and 1.59-1.81 MPa to denture base resin after 1-dayimmersion, and 1.59-2.75 MPa and 1.47-2.33 MPa respectively after 8-week immersion. These values were significantly superior to those of two ordinary silicone-rubber relining materials.